All but one of the 10 stores closed in two previous crackdowns have since reopened, according to Ken Towsley, director of city code enforcement.

The two stores closed most recently are:

• Extra Kleen Foods, 227-31 Hawley Ave. Inspectors found open sewer connections, open electrical wiring, a non-certified fire suppression system, no fire protection for food preparation, a blocked rear exit door and a hot water tank venting back into the building. The blocked exit door had been cited before, officials said.

• Green Front Market, 1101 Avery Ave, Inspectors found open and live exterior wiring near the ground, open electrical panels, non-permitted wiring in the basement, non-compliant fire extinguishers, an improperly connected hot water tank and no exit signs.

Three other corner stores passed the surprise inspections with minor violations: Al's Market, 448 Hawley Ave.; Bawli's Market, 801 Butternut St. and Dully's Express Mart, 612 Second North St.

So far, the city has inspected 21 corner stores in three rounds. Twelve were closed within 24 hours after the inspections until violations were fixed. Nine were allowed to remain open.

Of those closed by the city in the previous two rounds, all but one -- South Avenue Market, 1500 South Ave. -- have reopened, Towsley said. South Avenue Market was cited for improper electrical, open sewer drains, unprotected gas piping and improper gas ventilation.

"We have now seen three successful rounds of this crackdown on corner stores," Mayor Stephanie Miner said in a news release. "This effort is vitally important to our neighborhoods as we work to proactively address health and safety issues on our streets."